Flow regulator



FIG. 1 is a perspective view of an ornamental design for the flow regulator of the present invention;

FIG. 2 is a front view of the flow regulator of FIG. 1;

FIG. 3 is a rear view of the flow regulator of FIG. 1;

FIG. 4 is a first side view of the flow regulator of FIG. 1;

FIG. 5 is a second side view of the flow regulator of FIG. 1;

FIG. 6 is a top view of the flow regulator of FIG. 1; and,

FIG. 7 is a bottom view of the flow regulator of FIG. 1. 

The ornamental design for a flow regulator, as shown and described. 